In this Nov. 8, 2011, photo, NASA fan David Parmet signs his name on a Twitter logo during a tweetup event for about 50 of NASA's Twitter followers at the Langley Research Center in Hampton, Va. NASA... (AP Photo/Brock Vergakis)

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Twitter has undergone an overhaul, Mashable reports: Get ready for an updated profile page and reworked apps for your iPhone, iPad, or Android device. The profile page is now more graphics-heavy, with an image reminiscent of the Facebook profile banner at the top, notes Today. User avatars are now smack in the center of that image. Users should have the option to switch to the new look now.

Everyone will ultimately be required to use the new version, which also appears on the iPhone app. Meanwhile, the new iPad app has been "rebuilt from the ground up to make it fast, beautiful, and easy to use," says the company in a statement. "Tweets come alive with in-line expansion and support for photos, videos, and website summaries." The app also offers full-screen photos, CEO Dick Costolo tells Today.